John Hagan, CRNP
Critical Care Medicine Nurse Practitioner · Baltimore, MD
John Hagan, CRNP is a critical care medicine nurse practitioner with a practice address in Baltimore, Maryland, and NPI 1740489970, issued on Jul 17, 2007. Check the license (Maryland R079848, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Hagan
- Credential
- CRNP
- Primary taxonomy
- Critical Care Medicine Nurse Practitioner 363LC0200X
- License number
- R079848 MD
Self-reported in NPPES; status is on the state search - Practice location
- 827 Linden Ave, Baltimore, MD 21201
- Phone
- (410) 328-8141
- Enumerated
- Jul 17, 2007
- Record last updated
- May 28, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (410) 328-0177
- Medicaid ID
- 419031900 MD
- Medicare enrollment
- Enrolled (PECOS I20100205000134); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest critical care medicine nurse practitioner records → All 38 in Maryland → Look up another NPI →
Also registered at 827 Linden Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Priya Agrawal, MDStudent in an Organized Health Care Education/Training Program1477495018
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Verify John Hagan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license R079848Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- University OF Maryland Physicians PABaltimore, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Hagan among 38 critical care medicine nurse practitioner records in Maryland
John Hagan, CRNP is one of 38 critical care medicine nurse practitioner records with a practice address in Maryland. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 3% of them.
- NPI issued2007 · 3% of these records are older, 95% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2005 · median 2018 among the 28 with a school on file
- Record last updated2019 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LC0200X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Critical Care Medicine Nurse Practitioner providers in Maryland
There are 38 critical care medicine nurse practitioner records in Maryland.
All 38 in Maryland → Every provider in Baltimore → Critical Care Medicine Nurse Practitioner nationwide →
The 8 critical care medicine nurse practitioner records with the nearest ZIP codes
- Kimberly Bowers, RN ACNPBaltimore, MD 212011710153820
- Erin Desalvo, CRNPBaltimore, MD 212011841475092
- Chelsea Diggs, CRNPBaltimore, MD 212011831897917
- Anastasia EberhardtBaltimore, MD 212011083491633
- Rebekah HartlandBaltimore, MD 212011477166965
- Jessica Hatch, CRNPBaltimore, MD 212011790304012
- Catherine Kigaya, CRNPBaltimore, MD 212011508184235
- Devon McCabe, NPBaltimore, MD 212011477120848
Common questions
What is John Hagan, CRNP's NPI number?
John Hagan, CRNP's National Provider Identifier (NPI) is 1740489970, issued on Jul 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Hagan, CRNP located?
The NPPES record lists a practice address at 827 Linden Ave, Baltimore, MD, 21201. Phone: (410) 328-8141. Providers update this record themselves, so call before visiting.
How can I verify John Hagan, CRNP's license?
NPPES lists Maryland license number R079848, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.